Chemical Bonding and Molecular Structure

Chemical Bonding and Molecular Structure

Question

Using MO theory predict which of the following species has the shortest bond length?

  • O22+

  • O2+

  • O2

  • O22−

Answer

A.

O22+

Bond space length space proportional to fraction numerator 1 over denominator bond space order end fraction
straight B. straight O space equals space 1 half space equals space left square bracket straight N subscript straight b minus space straight N subscript straight a right square bracket
space equals space 1 half space left square bracket 10 minus 4 right square bracket
Bond space orders space of space straight O subscript 2 superscript plus space comma space straight O subscript 2 superscript minus comma space straight O subscript 2 superscript 2 minus end superscript space and space straight O subscript 2 superscript 2 plus end superscript space are space
2.5 comma space 1.5 space and space 3

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